28707978 (number)

28707978 is an even 8-digits composite number following 28707977 and preceding 28707979. In scientific notation, it is written as 2.8707978 × 10^7. The sum of its digits is 48. It has a total of 5 prime factors and 32 positive divisors. There are 8782848 positive integers (up to 28707978) that are relatively prime to 28707978.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred seven thousand nine hundred seventy-eight

Notation

Scientific notation 2.8707978 × 10^7
Engineering notation 2.8707978 × 10^6

Prime Factorization of 28707978

Prime Factorization 2 × 13 × 3 × 193 × 1907

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28707978
Product of the distinct prime numbers

The prime factorization of 28707978 is 2 × 13 × 3 × 193 × 1907. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 6, 9, 83, 573, 687, 8851, 4352, 24197, 89964, 168092, 396764, 8017459, 893868, 79323059, 55659779, 973071774, 638216167, 2952304785, 5440735399

Basic calculations (n = 28707978)

Multiplication

n×y
n×2 57415956
n×3 86123934
n×4 114831912
n×5 143539890

Division

n÷y
n÷2 14353989
n÷3 9569326
n÷3 7176994.5
n÷5 5741595.6

Exponentiation

ny
n2 824148000848484
n3 2.3659622677102E+22
n4 6.7921992730255E+29
n5 1.9499030730163E+37

Nth Root

y√n
2√n 5357.982642749
3√n 306.19695552203
4√n 73.198242074172
5√n 31.01705220061

Divisors of 28707978

1, 2, 3, 6, 13, 26, 39, 78, 193, 386, 579, 1158, 1907, 2509, 3814, 5018, 5721, 7527, 11442, 15054, 24791, 49582, 74373, 148746, 368051, 736102, 1104153, 2208306, 4784663, 9569326, 14353989, 28707978

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28707977
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28707978 can be divided by 32 positive divisors. The sum of these divisors (counting 28707978) is 1, the average is 0.03125.

Base conversion 28707978

Base System Value
2 Binary 1101101100000110010001010
3 Ternary 2000000111221110
4 Quaternary 1231200302022
5 Quinary 24322123403
6 Senary 2503151150
8 Octal 155406212
10 Decimal 28707978
12 Duodecimal 97454b6
16 Hexadecimal 1b60c8a
20 Vigesimal 8j89ii
36 Base36 h3b7u

Cryptographic Hash Functions

md5 a9d4dd654d75e8b3f02157e3adf74d82
sha1 5ebd376040ccb5a51995da62263b066b792c6e84
sha256 ce24a310918b2b109b93044d76c118170960adef13b9e04fa6692ca45176db22
sha512 02e7c9a3db05c953f5c413035d6d7b0b2a2a440b4a51a618344b101f93a964926b5c20851ac60e617df0c22b7ca44b261ad7b80a5d972b353cf54a70e2d1ab7b
ripemd-160 fdbec71fc4884ec70c55ccb45cff65cf06a87625

28707978 as geometric shapes

Circle

Radius = n
Diameter 57415956
Circumference 180377545.56843
Area 2.5891373049363E+15

Sphere

Radius = n
Volume 9.9105195718788E+22
Surface area 1.0356549219745E+16
Circumference 180377545.56843

Square

Length = n
Perimeter 114831912
Area 824148000848484
Diagonal 40599211.835908

Cube

Length = n
Surface area 4944888005090904
Volume 2.3659622677102E+22
Space diagonal 49723676.47857

Equilateral Triangle

Length = n
Perimeter 86123934
Area 3.5686655260647E+14
Altitude 24861838.239285

Triangular Pyramid

Length = n
Surface area 3.5686655260647E+14
Volume 2.788313272549E+21
Height 13533070.611969